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https://github.com/xcat2/xcat-core.git
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Vinícius Ferrão
87 lines
2.1 KiB
Bash
Executable File
87 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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# is_lsb_ubuntu exit status indicates whether system appears to be Ubuntu.
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# Using required /etc/lsb-release file, instead of optional lsb_release command.
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is_lsb_ubuntu ()
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{
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awk '
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(match($0, "^[ \t]*DISTRIB_ID=") == 1) { # A DISTRIB_ID line
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id = substr($0, RLENGTH + 1) # Save its value
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}
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END {
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# Examine last DISTRIB_ID value to see if Ubuntu indicated
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if (match(id, "^(Ubuntu|\"Ubuntu\")[ \t]*$") == 1) {
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exit 0 # Ubuntu
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}
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exit 1 # Not Ubuntu
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}
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' /etc/lsb-release >/dev/null 2>&1
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# Routine exit status is exit status of the last command -- the awk script.
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#
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# Note: if /etc/lsb-release does not exist, the exit status indicates
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# failure (not Ubuntu), which is the correct outcome.
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}
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DIRECTORY=/var/named
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# check for SLES
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grep -s -q sles /etc/os-release
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IS_SLES=$?
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if [ -f /etc/SuSE-release ] || [ $IS_SLES -eq 0 ]; then
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DIRECTORY=/var/lib/named
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fi
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FILE=/etc/named.conf
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if ( is_lsb_ubuntu ); then
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FILE=/etc/bind/named.conf
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fi
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#unalias cp
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if [ -f $FILE ]; then
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cp -f $FILE ${FILE}.ORIG
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fi
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if [ ! -d $DIRECTORY ]; then
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mkdir $DIRECTORY
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fi
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echo "options {
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directory \"$DIRECTORY\";
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dump-file \"$DIRECTORY/data/cache_dump.db\";
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statistics-file \"$DIRECTORY/data/named_stats.txt\";
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memstatistics-file \"$DIRECTORY/data/named_mem_stats.txt\";
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recursion yes;
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forward only;
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forwarders {" >$FILE
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for i in $(grep "^nameserver" /etc/resolv.conf | awk '{print $2}')
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do
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echo " $i;"
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done >>$FILE
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echo " };" >>$FILE
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# Natural version compare against version of bind.
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version_ge()
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{
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if [ -z "$1" ] || [ -z "$2" ]; then
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return 1
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fi
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# "sort --version-sort" sorts versions in ascending order.
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[ "$(printf '%s\n' "$1" "$2" | sort --version-sort | tail -n1)" = "$1" ]
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}
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BIND_VERSION=$(/usr/sbin/named -v | cut -d" " -f2 | grep -Eo '[0-9]+\.[0-9]+\.[0-9]+' | head -n1)
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if version_ge "$BIND_VERSION" "9.16.6"; then
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if ! version_ge "$BIND_VERSION" "9.18.0"; then
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echo " dnssec-enable no;" >>$FILE
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fi
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echo " dnssec-validation no;" >>$FILE
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fi
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echo "};" >>$FILE
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